Shimano Dura Ace Shadow RD-R9100 11-speed Rear Derailleur Online Hot Sale

-90% Off


SKU: US-6653014835266 Categories: ,


Shimano Dura Ace Shadow RD-R9100 11-speed Rear Derailleur

The Dura Ace RD-R9100 rear derailleur by Shimano – mechanical shifting at the highest level

With the Dura Ace RD-R9100 rear derailleur, Shimano introduces Shadow RD technology, best known from the MTB sector, to the world of Road bikes. Thanks to the particularly flat profile, damage is prevented and quiet, clean and safe operation is guaranteed even on uneven surfaces. The new direct mount option accommodates frames with thru axle dropouts. The super light Dura Ace rear derailleur is mainly made of carbon. Its short cage (SS type) is compatible with 11-speed cassettes up to 11-30 teeth.


Series: Dura Ace R9100
Application: Road, Triathlon & Time Trail
Gearing: 11-speed
Mount: standard (Direct Mount compatible)
Capacity: 35 teeth
Compatibility: Shimano Road 11-speed
Compatibility – Chains: HG-EV 11-speed, HG-X11

Technical Information:

Derailleur Pulleys: 11 tooth
Outer Cage Material: carbon (CFRP)
Inner Cage Material: carbon (CFRP)
Other Materials: aluminium, carbon (CFRP), steel


– consistent shifts
– pulley tracking at a defined distance
– Shimano Shadow RD type
– rear derailleur with flat profile
– adapted to race specific frame design
– cage plates clear coated
– derailleur pulley bearings
– 4 joint bushings, fluorine-coated


Shadow RD
The mechanism rear derailleur, Shimano Shadow RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chainstay in rough riding conditions. The result is smooth and silent performance.


– Cage Length: SS
– Largest Sprocket Teeth (max.): 30 teeth
– Largest Sprocket Teeth (min.): 25 teeth
– Smallest Sprocket Teeth (max.): 14 teeth
– Smallest Sprocket Teeth (min.): 11 teeth
– Chainring Difference (max.): 16 teeth
– Total Capacity: 35 teeth
– Manufacturer Part Number: I-RDR9100SS


– 1 x Shimano Dura Ace RD-R9100 rear derailleur
– 1 x Shimano OT-RS900 240 mm cable housing
– 1 x long nose end cap


  • black/short: 158 g

    Shimano Dura Ace Shadow RD-R9100 11-speed Rear Derailleur Online Hot Sale